If you are weighing Lian Li Uni Fan TL vs SL Infinity for your build, you are comparing Lian Li UNI Fan SL-Infinity-120-Controller against Lian Li UNI Fan TL Flex 120 Reverse Blade ARGB PWM. Both use Lian Li interlocking Uni Fan connections and both ship with a controller, but they were made for different jobs in your case layout and lighting plan.
Your real decision is showpiece glow against intake performance as reviewed for November 2026. One option centers on a white infinity mirror look with layered lighting, while the other centers on a black reverse blade design that brings in air through glass or mesh while keeping the clean side visible. Explore the Custom Build Cosmetics & Rig Aesthetics guides if you want your fans, cooler screen, and room glow to match.
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Quick Picks at a Glance
Prime Lian Li UNI Fan SL-Infinity 120 White Triple Pack
Lian Li UNI Fan TL Flex 120mm Reverse Blade ARGB
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Pros
- Stunning infinity mirror RGB that looks premium from all viewing angles
- Quiet operation while maintaining strong airflow and static pressure
- Snap together installation with single cable per group simplifies cable management
- Versatile L-Connect 3 software with individual blade and frame lighting control
- Controller included in triple pack supports large multi-fan setups
Cons
- Requires proprietary controller hub, cannot connect directly to standard 4-pin motherboard header
- L-Connect 3 software setup and warranty registration can be time consuming
- Focused on aesthetics and ease of use, not the cheapest option for performance only builds
The Lian Li UNI Fan SL-Infinity 120 triple pack in white is a 120mm ARGB case fan kit with included controller, built for gamers and PC enthusiasts who want cooling and showpiece lighting in one package. It is ideal for showcase builds, tempered glass cases, and radiator setups where looks matter as much as airflow.
Each fan packs 40 addressable LEDs with a full infinity mirror frame that creates layered lighting visible from any angle. In real use, fans spin from 200 to 2100 RPM to deliver up to 61.3 CFM and 2.66mmH2O pressure while staying at a quiet 29dB max.
Build quality feels premium with aluminum trim, sturdy plastic housing, and smooth fluid dynamic bearings for long life. The interlocking daisy chain design snaps fans together and uses a single cable per group, while the reversible module and removable keylock improve fit with radiators.
The main tradeoff is the proprietary 7-pin ecosystem that requires the included controller and L-Connect 3 software. You cannot plug these directly into a standard 4-pin motherboard header without an adapter, and software setup takes extra time.
Overall, the SL-Infinity 120 is a top pick for builders who prioritize clean cable management, quiet performance, and best in class ARGB effects. If you want easy to install, ultra pretty fans with solid cooling, this white triple pack is worth it.
Model: UF-SLIN120-3W, White Triple Pack with Controller, 120 x 122.1 x 25mm per fan.
Performance: 200 to 2100 RPM speed, up to 61.3 CFM airflow, 2.66mmH2O air pressure, 29dB max noise.
Electrical: 12V for fan and 5V for LED, fluid dynamic bearing, 4-pin power connector type with 7-pin interlocking link.
Lighting and Control: 40 ARGB LEDs per fan, infinity mirror frame, L-Connect 3 customizable effects, controller supports up to 16 fans.
Snap fans together first using the interlocking keylock, then connect the single cable module to the included controller for both power and lighting. This single cable approach greatly reduces clutter compared to separate fan and RGB cables.
Use L-Connect 3 to set fan curves and lighting, and group up to 4 fans per channel for synced rainbow or custom effects. Plan radiator clearance and use the reversible cable module if fittings interfere.
Remember these use a proprietary 7-pin link and need the hub to work, so keep the controller accessible inside your case. Download the software before final cable routing to test all LEDs and speeds.
Pros
- Excellent airflow and static pressure for case and radiator use
- Quiet at idle with powerful ramp up when needed
- Clean reverse blade aesthetic with vibrant ARGB lighting
- Easy daisy chain installation with controller included
Cons
- Some users report grinding noise or wobbling over time
- Housing shows a slight grey purple tint when powered off, may clash with pure white cases
- Must carefully verify reverse blade vs standard model to get correct airflow direction
The Lian Li UNI Fan TL Flex 120 Reverse Blade 3-pack is designed for PC builders who want high performance intake fans with a clean, unobstructed view. It is ideal for showcase builds, glass cases and radiator intake where looks matter as much as cooling.
In real use, these fans move serious air with up to 83.4 CFM and 2.66mmH2O static pressure at 2300 RPM. Users report quiet operation at idle with strong ramp up under load, plus smooth PWM or L-Connect 3 wireless speed control.
Build quality centers on LCP blades, a tight 0.6mm blade to frame gap, and FDB bearings with copper shielding for stability. The interlocking UNI design with daisy chaining cuts cable clutter, while ARGB lighting looks vivid and syncs through motherboard software.
There are a few caveats to know before buying. The housing can show a slight grey purple tint when powered off compared to pure white cases, and you must confirm reverse blade versus standard version to get airflow direction right. A small number of users also report grinding or wobble issues over time.
Overall, this kit is a top pick for enthusiasts who want premium looks, flexible wireless control and strong cooling in one package. If you value a clean intake aesthetic and easy installation, the TL Flex Reverse Blade set is well worth considering.
Model: 12RTL1F3B, 120mm Reverse Blade, Black, 3-Pack with Controller Included
Speed: Up to 2300 RPM with PWM control, FDB Bearing with Copper Shielding
Performance: Up to 83.4 CFM Airflow, 2.66mmH2O Static Pressure, LCP Blades with 0.6mm Gap
Lighting and Control: 5V 3-Pin ARGB, Motherboard Sync, LCD FLEX and LED FLEX Receivers, L-Connect 3 Support
Size and Weight: 4.33 x 6.22 x 5.24 inches Box, 1.84 pounds, Best for Case and Radiator Intake
How They Compare
We researched the spec sheets, evaluated owner feedback, and compared lighting, airflow, noise handling, and controller ecosystems side by side. Neither choice is wrong on its own, yet each one clearly suits a different case color, mounting spot, and software setup in your rig.
Lighting Design and Case Presence
Lian Li UNI Fan SL-Infinity-120-Controller uses an all around infinity mirror design that creates a multi layer effect visible from any angle, with 40 LEDs in each fan per the spec sheet. The blades and the inner edges of the frame can use individual modes or pre set combined effects, which gives you a deep mirror tunnel look that fills a white build with reflected color.
Lian Li UNI Fan TL Flex 120 Reverse Blade ARGB PWM takes a more functional approach to ARGB with 5V 3-Pin motherboard control for lighting plus PWM or wireless options for speed. You can still sync color through your board software, but the visual focus is a clean intake face rather than a mirror loop, so it blends better in black builds where you want airflow without constant visual dominance. If you pair fans with room glow, see these LED strip lights for gaming room baseboards for a calmer match.
Airflow, Static Pressure and Radiator Suitability
Lian Li UNI Fan SL-Infinity-120-Controller is rated per the spec sheet for up to 61.3CFM of airflow and up to 2.66mmH2O of static pressure across a 200 to 2100RPM range. Lian Li UNI Fan TL Flex 120 Reverse Blade ARGB PWM is rated per the spec sheet for up to 83.4CFM with the same 2.66mmH2O static pressure, helped by LCP blades and a tight 0.6mm blade to frame gap, with speeds up to 2300RPM.
For your build, that means the TL Flex reverse blade has more headroom as a front or bottom intake behind a filter, while the SL-Infinity remains a solid case and radiator fan when you prefer its look and accept a higher speed for similar air movement. Check your radiator clearance against your case before you order, follow the manufacturer mounting instructions closely, and double check airflow direction so you do not order the wrong reverse version. For more radiator focused options, compare these top 120mm ARGB fans for radiators.
Speed Range, Bearings and Noise Character
Lian Li UNI Fan SL-Infinity-120-Controller lists Fluid Dynamic Bearing construction, DC 12V for the fan plus 5V for LED, 6.0V start up, and up to 29dB of acoustical noise at maximum speed. Lian Li UNI Fan TL Flex 120 Reverse Blade ARGB PWM also uses FDB bearings with added copper shielding for stable operation up to 2300RPM, and it is described as a quiet operation design with PWM control.
You will likely run the SL-Infinity in its low to mid range for daily gaming and reserve the top end for heavy heat loads, since owners commonly report a clear rise in sound near maximum speed. The TL Flex gives you extra RPM on paper, which may help at low restriction intake, but you should still build a gentle fan curve in your BIOS or L-Connect 3 so high speed does not intrude during voice chat. If low sound is your first goal, browse these 9 quiet ARGB fans for clean airflow before you lock your curve.
Cable Management, Controller and Software Control
Lian Li UNI Fan SL-Infinity-120-Controller leans on interlocking cable management with a removable keylock and reversible cable module for improved fit around radiator fittings. Its included controller in the triple pack can support up to 16 fans with 4 fans in each group plus 2 SM type connecting devices, which suits larger builds that want grouped lighting zones.
Lian Li UNI Fan TL Flex 120 Reverse Blade ARGB PWM includes a controller as well, but adds updated LCD FLEX and LED FLEX receivers that allow PWM or L-Connect 3 speed management while retaining essential LCD functions through a wireless connection. That flexibility is helpful, yet it also adds version confusion between standard, reverse blade, LCD, and LED models, so confirm the exact model type before you buy. It pairs well with a screen based cooler in a themed rig like this best AIO LCD screen cooler for white build, as long as you keep each fan family on its correct controller path.
Which One Should You Get
Choose Lian Li UNI Fan SL-Infinity-120-Controller if your priority is a bright white showpiece with a deep infinity mirror glow, grouped lighting effects, and proven interlocking cable routing. You get 40 LEDs per fan, blade plus frame edge customization, and a controller layout that handles up to 16 fans in groups of 4, which suits side and rear mounts where looks matter as much as air movement. You should not buy this pack if you need maximum intake airflow behind dense filters or if you want a blacked out reverse intake face.
Choose Lian Li UNI Fan TL Flex 120 Reverse Blade ARGB PWM if you need a black intake fan that looks clean from the front while pulling air in through glass, mesh, or a radiator. You get higher rated airflow at 83.4CFM, LCP blades with a 0.6mm gap, FDB bearings with copper shielding, and flexible PWM, motherboard ARGB, L-Connect 3, and wireless receiver control. You should not buy this reverse blade version if you need standard exhaust orientation, since reverse blades are shaped for intake viewing and ordering the wrong direction will hurt your planned airflow path.
Who Should Skip Both
Both of these Uni Fan packs are not ideal for a builder who wants a simple no lighting office PC, a non Lian Li ecosystem without extra software, or a larger diameter fan size for a case tuned around bigger mounts. If you dislike grouped controllers, wireless receivers, and ARGB wiring entirely, you are not a good fit for either family and you would be happier with plain PWM fans plus careful under desk wiring instead.
Frequently Asked Questions
Is the TL Flex reverse blade better for intake than the SL-Infinity?
For intake viewing positions, Lian Li UNI Fan TL Flex 120 Reverse Blade ARGB PWM is the more direct pick because its reverse blade shape is made to show a clean face while drawing air inward. Lian Li UNI Fan SL-Infinity-120-Controller can still work as intake, but its lower 61.3CFM rating means you may run higher RPM to match the TL Flex airflow.
Can I mix SL-Infinity and TL Flex fans on the same controller and software?
You should plan to keep them separate and follow Lian Li guidance for each controller, since the SL-Infinity uses its grouped controller layout while the TL Flex adds LCD FLEX and LED FLEX receiver paths with L-Connect 3 and wireless options. Mixing families can complicate lighting sync and speed curves, so assign each family to its correct ports and software profile.
Which is better for a white radiator build, SL-Infinity or TL Flex reverse blade?
If your theme is white with strong mirror lighting, Lian Li UNI Fan SL-Infinity-120-Controller fits better thanks to its white frame, infinity mirror layers, and reversible cable module that helps around radiator fittings. If your white case uses black contrast fans for intake power, Lian Li UNI Fan TL Flex 120 Reverse Blade ARGB PWM may suit you more, but verify radiator clearance and fan direction first.
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